How to change the color of the track ?

[SunnySedated]

I would like to choose some different colors for the tracks. Its helps me to keep the overview.
But I cant find how to do that?

Greetz

[SunnySedated]

FOUD IT TOO

[MuTools]

FYI: https://www.mutools.com/info/M10/docs/mulab/colors.html